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Finding the Fourth Proportional to 251,282.08, 376,978.68 and 82,795.60

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Solution

The fourth proportional to 251,282.08, 376,978.68 and 82,795.60 is: 124,211.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,282.08 : 376,978.68 = 82,795.60 : x
  2. Step 2: Convert to fraction form
    251,282.08/376,978.68 = 82,795.60/x
  3. Step 3: Cross multiply
    251,282.08x = 376,978.68 × 82,795.60
  4. Step 4: Simplify right side
    251,282.08x = 31,212,175,997.81
  5. Step 5: Solve for x
    x = 31,212,175,997.81/251,282.08
  6. Step 6: Final answer
    x = 124,211.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.